Home / 830,116.80-1,245,175.20-732,139.20

Finding the Fourth Proportional to 830,116.80, 1,245,175.20 and 732,139.20

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Solution

The fourth proportional to 830,116.80, 1,245,175.20 and 732,139.20 is: 1,098,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,116.80 : 1,245,175.20 = 732,139.20 : x
  2. Step 2: Convert to fraction form
    830,116.80/1,245,175.20 = 732,139.20/x
  3. Step 3: Cross multiply
    830,116.80x = 1,245,175.20 × 732,139.20
  4. Step 4: Simplify right side
    830,116.80x = 911,641,574,787.84
  5. Step 5: Solve for x
    x = 911,641,574,787.84/830,116.80
  6. Step 6: Final answer
    x = 1,098,208.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.